Games like Planetarian: Ultimate Edition

If you finished Planetarian: Ultimate Edition, the closest matches are Steins;Gate: Linear Bounded Phenogram, Analogue: A Hate Story, Planetarian: The Reverie of a Little Planet, Ciconia When They Cry: Phase 1 - For You, the Replaceable Ones and Clannad Side Stories. All 9 share its adventure genre and are ranked by how closely their themes and modes overlap.